CN203071827U - Inverter used for solar cell module and solar power station - Google Patents
Inverter used for solar cell module and solar power station Download PDFInfo
- Publication number
- CN203071827U CN203071827U CN 201320039820 CN201320039820U CN203071827U CN 203071827 U CN203071827 U CN 203071827U CN 201320039820 CN201320039820 CN 201320039820 CN 201320039820 U CN201320039820 U CN 201320039820U CN 203071827 U CN203071827 U CN 203071827U
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- Prior art keywords
- inverter
- solar module
- test lead
- connecting line
- temporarily
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- Expired - Fee Related
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- 238000010891 electric arc Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/02016—Circuit arrangements of general character for the devices
- H01L31/02019—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02021—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier for solar cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
- Inverter Devices (AREA)
Abstract
The utility model discloses an inverter used for a solar cell module and a solar power station. The inverter comprises a first input end (21), a second input end (22), a test end (23) and an indicator part (6). The test end (23) is provided with connecting wires (41, 42) which are used for temporarily connecting with the solar cell module, and the indicator part (6) is configured to provide information that whether the polarities of the connecting wires (41, 42) which are used for temporarily connecting the solar cell module with the test end (23) are correct or not when being connected with the first input end (21).
Description
Technical field
The utility model relates to for the inverter of solar module and relates to the solar power station that is provided with this inverter.
Background technology
When solar module is connected to inverter, must detect the correct polarity of connecting line.If be connected to the output graunch of solar module the input of inverter, then the connecting line with connection error disconnects the electric arc that connection may make installation personnel and/or inverter incur danger.In addition, this electric arc can cause fire.
Known prevents owing to the wrong method that couples the electric arc that causes is to cancel coupling of this mistake after darkness.Undoubtedly, wait for that darkness has increased installation cost significantly.In the area near the polar region, because before The night screen has hung down, may experience the several months, so situation is especially difficult when summer.
In the art, being also known as inverter provides the diode that stops reverse current or the direct current separator that makes the live wire separation that has connected mistakenly is provided.The problem of diode is its energy consumption that causes, about the problem of direct current separator then from its fancy price and its required big space.
The utility model content
A purpose of the present utility model provides the inverter that the problems referred to above are resolved.This purpose of the present utility model is realized by following inverter: this inverter comprises first input end and second input, this inverter is characterised in that it also comprises test lead and indicator component, this test lead is set to temporarily be connected to the connecting line of solar module, and this indicator component is set to provide about the polarity of the connecting line that temporarily is connected to test lead of solar module for being connected to whether correct information of first input end.
Basic thought of the present utility model is to provide test lead and indicator component to this inverter, during installation, the connecting line of solar module temporarily is connected to this test lead, and whether this indicator component indicates the polarity of the connecting line that temporarily is connected to test lead correct for the specific input that connects it to this inverter.The polarity that this indicator component therefore is configured to detect the connecting line that temporarily is connected to test lead is positive or negative.
Can avoid the mistake of the connecting line of solar module to couple according to inverter of the present utility model.
Description of drawings
Fig. 1 shows the schematic diagram that comprises according to the solar power station of the inverter of embodiment of the present utility model.
Embodiment
Below in conjunction with preferred embodiment and 1 describe the utility model in more detail with reference to the accompanying drawings, Fig. 1 shows the solar power station that comprises according to the inverter of embodiment of the present utility model.The solar power station of Fig. 1 comprises solar module 8, inverter 2, first connecting line 41 and second connecting line 42.Solar module 8 is configured to convert solar energy to electric energy, and solar module 8 comprises first output 81 and second output 82.
First connecting line 41 is electrically connected to the first input end 21 of inverter 2 with first output 81 of solar module 8, and second connecting line 42 is electrically connected to second output 82 of solar module 8 second input 22 of inverter 2.First output 81 of solar module 8 and the first input end 21 of inverter 2 are plus ends.Second output 82 of solar module 8 and second input 22 of inverter 2 are negative terminals.
Indicator component 6 is configured to indicate by first deixis correct polarity of the connecting line of the solar module that temporarily is connected to test lead 23, and this first deixis can comprise voice signal, light signal or graphic character.Graphic character for example can be the symbol that is presented at the correctness that the expression on the inverter display (not shown) couples.
Alternatively or as a supplement, indicator component can be configured to the polarity of mistake of indicating the connecting line of the solar module that temporarily is connected to test lead by second deixis.Be configured to indicate by first deixis among the embodiment of polarity of the correct polarity of connecting line and the mistake by second deixis indication connecting line at indicator component, first deixis must be different from second deixis by constitutionally.
Test lead is to make indicator component can detect the parts of the polarity of connecting line.Test lead can be common electric terminal.Alternatively, test lead can be metal dish or the metal bar of the electrical connection that for example is configured to provide temporary transient.Test lead can also be the parts that come the polarity of sensing electric field by the electric field that the insulation crust of connecting line is passed in measurement.
Test lead can be placed on the lip-deep accessible position of inverter outer cover.Alternatively, the test lead of inverter can be placed in the jockey, and for example, this jockey is the device that separates with the inverter outer cover that comprises the inversion parts.The inversion parts comprise a plurality of controlled switches, and this control makes direct current be converted into alternating current.Jockey can comprise direct-flow intermediate circuit, before the power supply of the inversion parts of inverter, is collected into this direct-flow intermediate circuit from the electric power of a plurality of solar battery cells.
In the embodiment in figure 1, the first input end 21 of inverter is positive input terminal, and indicator component 6 is configured to provide the information as first output 81 of positive output end that whether is connected to solar module about the connecting line that temporarily is connected to test lead 23 of solar module at its other end.
Indicator component 6 is configured to measure test lead 23 with respect to the voltage of reference potential.If indicator component 6 measures the positive voltage that value surpasses predetermined threshold value, then indicator component 6 produces first deixis.Indicator component 6 is configured to use the current potential of second input 22 as the reference current potential.According to the embodiment that replaces, can use other current potential of earth potential for example or some to guarantee the correct direction of the electric current of solar module as the reference current potential.Embodiment according to replacing also can use current measurement to determine correct polarity, makes the electric current of the test lead of flowing through keep little of to cut off electric current easily and safely as much as possible by means of for example resistor.
When the current potential of the common current potential of for example earthed voltage or the artificial so-called virtual ground voltage that produces etc. some other rather than second input is used as reference potential, indicator component can be configured to when solar module and has only produced first deixis when being connected to inverter by connecting line (that is the connecting line between the test lead of first output by solar module and inverter).In this case, indicator component can be measured the connecting line that temporarily is connected to test lead and whether the direction of the voltage between the reference potential is required, and arbitrary input of inverter need not be electrically connected to solar module.According to some embodiment, before indicator component can produce first deixis, first output that second output of solar module must at first be connected to second input of inverter and solar module was connected to the test input of inverter.
For those skilled in the art, can to implement in every way be obvious to basic thought of the present utility model.Therefore, the utility model and embodiment are not limited to above-mentioned example and can change within the scope of the claims.
Claims (10)
1. inverter that is used for solar module, described inverter (2) comprises first input end (21) and second input (22), it is characterized in that, described inverter also comprises test lead (23) and indicator component (6), described test lead (23) is set to temporarily be connected to the connecting line (41 of described solar module, 42), and described indicator component (6) is set to provide about the polarity of the connecting line that temporarily is connected to described test lead (23) (41,42) of described solar module for being connected to whether correct information of described first input end (21).
2. inverter according to claim 1, it is characterized in that, described indicator component (6) is set to indicate by first deixis correct polarity of the connecting line that temporarily is connected to described test lead (23) (41,42) of described solar module.
3. inverter according to claim 2 is characterized in that, described first deixis comprises voice signal, light signal or graphic character.
4. according to any one the described inverter among the claim 1-3, it is characterized in that, described indicator component (6) is set to indicate by second deixis polarity of mistake of the connecting line that temporarily is connected to described test lead (23) (41,42) of described solar module.
5. according to any one the described inverter among the claim 1-3, it is characterized in that the impedance of described test lead (23) is higher than the impedance of described first input end (21) basically.
6. according to any one the described inverter among the claim 1-3, it is characterized in that, described indicator component (6) is set to check by the voltage with respect to reference potential of measuring described test lead (23) correctness of polarity of the connecting line that temporarily is connected to described test lead (23) (41,42) of described solar module.
7. inverter according to claim 6 is characterized in that, described reference potential is the current potential of described second input (22).
8. according to any one the described inverter among the claim 1-3, it is characterized in that described test lead (23) is placed on the position of the lip-deep easy arrival of inverter outer cover.
9. according to any one the described inverter among the claim 1-3, it is characterized in that described test lead is placed in the jockey, described jockey is the device that separates with the inverter outer cover that comprises the inversion parts.
10. solar power station, comprise solar module (8), inverter (2), first connecting line (41) and second connecting line (42), wherein said solar module (8) is set to convert solar energy to electric energy, described solar module (8) comprises first output (81) and second output (82), described inverter (2) comprises first input end (21) and second input (22), described first connecting line (41) is electrically connected to described first output (81) of described solar module (8) the described first input end (21) of described inverter (2), and described second connecting line (42) is electrically connected to described second output (82) of described solar module (8) described second input (22) of described inverter (2), it is characterized in that the described inverter (2) of described solar power station is the inverter according to claim 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20124097 | 2012-05-14 | ||
| FIU20124097 | 2012-05-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203071827U true CN203071827U (en) | 2013-07-17 |
Family
ID=48051763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320039820 Expired - Fee Related CN203071827U (en) | 2012-05-14 | 2013-01-24 | Inverter used for solar cell module and solar power station |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203071827U (en) |
| DE (1) | DE202013100704U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877815A (en) * | 2015-12-14 | 2017-06-20 | 成都鼎桥通信技术有限公司 | The detection method and device of a kind of photovoltaic group string connection |
| CN107852109A (en) * | 2015-07-21 | 2018-03-27 | 艾思玛太阳能技术股份公司 | For the method for operated inverter, inverter and photovoltaic apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012106612A1 (en) * | 2012-07-20 | 2014-05-15 | Sma Solar Technology Ag | DC mispolarization |
-
2013
- 2013-01-24 CN CN 201320039820 patent/CN203071827U/en not_active Expired - Fee Related
- 2013-02-18 DE DE201320100704 patent/DE202013100704U1/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107852109A (en) * | 2015-07-21 | 2018-03-27 | 艾思玛太阳能技术股份公司 | For the method for operated inverter, inverter and photovoltaic apparatus |
| CN107852109B (en) * | 2015-07-21 | 2020-08-11 | 艾思玛太阳能技术股份公司 | Method for operating an inverter, inverter and photovoltaic system |
| CN106877815A (en) * | 2015-12-14 | 2017-06-20 | 成都鼎桥通信技术有限公司 | The detection method and device of a kind of photovoltaic group string connection |
| CN106877815B (en) * | 2015-12-14 | 2019-08-13 | 成都鼎桥通信技术有限公司 | The detection method and device that a kind of photovoltaic group series winding connects |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202013100704U1 (en) | 2013-03-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20150124 |
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| EXPY | Termination of patent right or utility model |